mirror of https://gitee.com/bigwinds/arangodb
75 lines
3.1 KiB
C++
75 lines
3.1 KiB
C++
////////////////////////////////////////////////////////////////////////////////
|
|
/// DISCLAIMER
|
|
///
|
|
/// Copyright 2016 ArangoDB GmbH, Cologne, Germany
|
|
///
|
|
/// Licensed under the Apache License, Version 2.0 (the "License");
|
|
/// you may not use this file except in compliance with the License.
|
|
/// You may obtain a copy of the License at
|
|
///
|
|
/// http://www.apache.org/licenses/LICENSE-2.0
|
|
///
|
|
/// Unless required by applicable law or agreed to in writing, software
|
|
/// distributed under the License is distributed on an "AS IS" BASIS,
|
|
/// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
/// See the License for the specific language governing permissions and
|
|
/// limitations under the License.
|
|
///
|
|
/// Copyright holder is ArangoDB GmbH, Cologne, Germany
|
|
///
|
|
/// @author Jan Steemann
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
#ifndef ARANGODB_REST_SERVER_VIEW_TYPES_FEATURE_H
|
|
#define ARANGODB_REST_SERVER_VIEW_TYPES_FEATURE_H 1
|
|
|
|
#include "ApplicationFeatures/ApplicationFeature.h"
|
|
#include "VocBase/LogicalView.h"
|
|
|
|
namespace arangodb {
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief LogicalView factory for both end-user and internal instantiation
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
struct ViewFactory {
|
|
virtual ~ViewFactory() = default; // define to silence warning
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
/// @brief LogicalView factory for end-user validation instantiation and
|
|
/// persistence
|
|
/// @return if success then 'view' is set, else 'view' state is undefined
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
virtual Result create(LogicalView::ptr& view, TRI_vocbase_t& vocbase,
|
|
velocypack::Slice const& definition) const = 0;
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
/// @brief LogicalView factory for internal instantiation only
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
virtual Result instantiate(LogicalView::ptr& view, TRI_vocbase_t& vocbase,
|
|
velocypack::Slice const& definition,
|
|
uint64_t planVersion // cluster plan version ('0' by default for non-cluster)
|
|
) const = 0;
|
|
};
|
|
|
|
class ViewTypesFeature final : public application_features::ApplicationFeature {
|
|
public:
|
|
explicit ViewTypesFeature(application_features::ApplicationServer& server);
|
|
|
|
/// @return 'factory' for 'type' was added successfully
|
|
Result emplace(LogicalDataSource::Type const& type, ViewFactory const& factory);
|
|
|
|
/// @return factory for the specified type or a failing placeholder if no such
|
|
/// type
|
|
ViewFactory const& factory(LogicalDataSource::Type const& type) const noexcept;
|
|
|
|
static std::string const& name();
|
|
void prepare() override final;
|
|
void unprepare() override final;
|
|
|
|
private:
|
|
std::unordered_map<LogicalDataSource::Type const*, ViewFactory const*> _factories;
|
|
};
|
|
|
|
} // namespace arangodb
|
|
|
|
#endif |